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Nacreous clouds - Atmospheric Optics
Nacreous clouds, sometimes called mother-of-pearl clouds, are rare but once seen are never forgotten. They are mostly visible within two hours after sunset or before dawn when they blaze unbelievably bright with vivid and slowly shifting iridescent colours.
Iridescent Clouds - Atmospheric Optics
When parts of clouds are thin and have similar size droplets, diffraction can make them shine with colours like a corona. In fact, the colours are essentially corona fragments. The effect is called cloud iridescence or irisation, terms derived from Iris the Greek personification of the rainbow. The ...
Rare 'rainbow clouds' shimmer in the night sky over ...
Shepherd's delight: Rainbow coloured 'mother-of-pearl' clouds shimmering in the night sky. Unusual formation spotted over the Outer Hebrides just before sunrise
What causes Northern Lights and other natural phenomena ...
What causes Northern Lights and other natural phenomena? Learn everything about exciting light phenomena like polar lights, whose shimmering colours may bring to mind the exclusive flip-flop paint finish on the BMW Concept M8 Gran Coupé.
Riddles | Puzzles | Brain Teasers - IQ Test Experts
Collection of riddles and brainteasers. Find fun riddles for kids.
The Ozone Hole
Why does the ozone hole form over Antarctica ? The answer is essentially 'because of the weather in the ozone layer'.In order for rapid ozone destruction to happen, clouds (known as PSCs, Stratospheric Clouds Mother of Pearl or Nacreous Clouds) have to form in the ozone layer.
10 Rare Cloud Formations - Listverse
This is a list of what I believe to be the top 10 rarest cloud formations. And a brief description of each. No particular order in how ‘rare’ they are though. 1. Nacreous Clouds These rare clouds, sometimes called mother-of-pearl clouds, are 15 – 25km (9 -16 miles) high in the stratosphere and ...
RECENT ANTARCTIC NEWS AND ITEMS - New Zeal
JANUARY 8th, 2000. We have today received the third faxed report from the Antarctic GANOVEX Expedition ship "Polar Duke" sent to us by her master Karl Sanden.